#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>

int main() {
    int a;
    while (scanf("%d", &a) != EOF) {
        for (int i = 0; i < a; i++)
        {
            for (int j = 0; j < a; j++)
            {
                if (j == i || j == a - i - 1)
                {
                    printf("*");
                }
                else {
                    {
                        printf(" ");
                    }
                }
            }
            printf("\n");
        }
    }
    return 0;
}